Evaluation of present pest management practices for the pomegranate whitefly, Siphoninus phillyreae in Upper Egypt [electronic resource].

Includes references.

Field trails were carried out to evaluate certain pest management practices for the pomegranate whitefly, Siphoninus phillyreae (Haliday) (Homoptera : Aleyrodidae) in Upper Egypt fields (Assiut Governorate) during 2000 season. Spray oil (Masrona) showed 91.0% average mortality for eggs, 51.9% against nymphs and 18.4% for adults. Masrona oil gave 28.1% and 61.8% reduction against mature and immature stages of the parasitoid, Encarsia inaron Walker (Hymenoptera : Aphelinidae), respectively. Buprofezin and pyriproxyfen gave 8.2 and 17.8% mean mortality, respectively against adults of S.phillyreae, while they showed 94.1 and 88.6% against nymphs, respectively. The direct effect on eggs showed only 15.2 and 17.2% mean mortality, respectively. The two IGRs showed low toxicity against mature stages of the parasitoid (12.5 and 21.1%, respectively), while showed moderate toxicity against immature stages (42.5 and 57.4%, respectively). Malathion was very effective against adults and nymphs of S. phillyreae and also killed the parasitoid. Malathion showed 95.4, 98.0 and 11.6% mean reduction against adults, nymphs and eggs of S. phillyreae, and over 98% average reduction on the parasitoid, respectively.

Summary in Arabic.

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